when ron paul was running he got huge applause when he said a government that continues to deval its currency destroys the middle class. >> they don't have the money, they run out of borrowing power, guess what they do. they start printing money. >> reporter: the federal reserve has printed more moon to deep interest rates low. most economists agree there is a big risk in there, the debt to gdp ratio is 102%. our debt is actually greater now than the amount of money the entire u.s. economy produces. even at historically low interest rates that interest on the debt will cost the u.s. $222 billion this year. 570billion by the year 20, 22 if the rates stay that low. if interest rates ricin slightly every sector of the economy will have a hard time paying its bills. >> servicing the debt is hard now. this is with interest rates at record lows. god forbid something should happen to cause interest rates to go up just a little, back to where they ordinarily would be, the burden of this debt will become immensely greater. >> the problems when they come will appear very rapidly, and they'll a